2 * ===============================LICENSE_START======================================
4 * ================================================================================
5 * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============================LICENSE_END===========================================
21 package org.openecomp.dcae.apod.analytics.cdap.plugins.batch.sink.dmaap;
23 import org.apache.hadoop.io.NullWritable;
24 import org.apache.hadoop.mapreduce.RecordWriter;
25 import org.apache.hadoop.mapreduce.TaskAttemptContext;
26 import org.openecomp.dcae.apod.analytics.dmaap.service.publisher.DMaaPMRPublisher;
27 import org.slf4j.Logger;
28 import org.slf4j.LoggerFactory;
30 import java.io.IOException;
31 import java.util.Arrays;
34 * A simple implementation of {@link RecordWriter} which writes messages to DMaaP MR topic
36 * @author Rajiv Singla . Creation Date: 1/27/2017.
38 public class DMaaPMRRecordWriter extends RecordWriter<String, NullWritable> {
40 private static final Logger LOG = LoggerFactory.getLogger(DMaaPMRRecordWriter.class);
42 private final DMaaPMRPublisher dMaaPMRPublisher;
44 public DMaaPMRRecordWriter(DMaaPMRPublisher dMaaPMRPublisher) {
45 this.dMaaPMRPublisher = dMaaPMRPublisher;
49 public void write(String message, NullWritable value) throws IOException, InterruptedException {
50 LOG.debug("Writing message to DMaaP MR Topic: {}", message);
51 dMaaPMRPublisher.publish(Arrays.asList(message));
55 public void close(TaskAttemptContext context) throws IOException, InterruptedException {
56 dMaaPMRPublisher.flush();